fermentation vs unrest

fermentation and unrest both are nouns.

Word	Noun	Adjective	Verb	Adverb
fermentation	Yes	No	No	No
unrest	Yes	No	No	No

As nouns, fermentation and unrest are synonyms defined as:

fermentation and unrest: a state of agitation or turbulent change or development

Other synonyms of fermentation include agitation, ferment, tempestuousness.

fermentation (noun)	unrest (noun)
a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol	a feeling of restless agitation
a state of agitation or turbulent change or development	a state of agitation or turbulent change or development